Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

Conflicts:
	drivers/net/pcmcia/fmvj18x_cs.c
	drivers/net/pcmcia/nmclan_cs.c
	drivers/net/pcmcia/xirc2ps_cs.c
	drivers/net/wireless/ray_cs.c

31 files changed, 991 insertions, 537 deletions

diff --git a/fs/exec.c b/fs/exec.c
index ba112bd4a33..c0c636e34f6 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -46,7 +46,6 @@
 #include <linux/proc_fs.h>
 #include <linux/mount.h>
 #include <linux/security.h>
-#include <linux/ima.h>
 #include <linux/syscalls.h>
 #include <linux/tsacct_kern.h>
 #include <linux/cn_proc.h>
@@ -1209,9 +1208,6 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
 	retval = security_bprm_check(bprm);
 	if (retval)
 		return retval;
-	retval = ima_bprm_check(bprm);
-	if (retval)
-		return retval;
 
 	/* kernel module loader fixup */
 	/* so we don't try to load run modprobe in kernel space. */
diff --git a/fs/file_table.c b/fs/file_table.c
index 8eb44042e00..4bef4c01ec6 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -13,7 +13,6 @@
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/security.h>
-#include <linux/ima.h>
 #include <linux/eventpoll.h>
 #include <linux/rcupdate.h>
 #include <linux/mount.h>
@@ -280,7 +279,6 @@ void __fput(struct file *file)
 	if (file->f_op && file->f_op->release)
 		file->f_op->release(inode, file);
 	security_file_free(file);
-	ima_file_free(file);
 	if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL))
 		cdev_put(inode->i_cdev);
 	fops_put(file->f_op);
diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig
index 5971359d209..4dcddf83326 100644
--- a/fs/gfs2/Kconfig
+++ b/fs/gfs2/Kconfig
@@ -8,6 +8,8 @@ config GFS2_FS
 	select FS_POSIX_ACL
 	select CRC32
 	select SLOW_WORK
+	select QUOTA
+	select QUOTACTL
 	help
 	  A cluster filesystem.
 
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 3fc4e3ac7d8..3eb1ea84617 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -12,6 +12,7 @@
 #include <linux/spinlock.h>
 #include <linux/completion.h>
 #include <linux/buffer_head.h>
+#include <linux/xattr.h>
 #include <linux/posix_acl.h>
 #include <linux/posix_acl_xattr.h>
 #include <linux/gfs2_ondisk.h>
@@ -26,108 +27,44 @@
 #include "trans.h"
 #include "util.h"
 
-#define ACL_ACCESS 1
-#define ACL_DEFAULT 0
-
-int gfs2_acl_validate_set(struct gfs2_inode *ip, int access,
-			  struct gfs2_ea_request *er, int *remove, mode_t *mode)
+static const char *gfs2_acl_name(int type)
 {
-	struct posix_acl *acl;
-	int error;
-
-	error = gfs2_acl_validate_remove(ip, access);
-	if (error)
-		return error;
-
-	if (!er->er_data)
-		return -EINVAL;
-
-	acl = posix_acl_from_xattr(er->er_data, er->er_data_len);
-	if (IS_ERR(acl))
-		return PTR_ERR(acl);
-	if (!acl) {
-		*remove = 1;
-		return 0;
-	}
-
-	error = posix_acl_valid(acl);
-	if (error)
-		goto out;
-
-	if (access) {
-		error = posix_acl_equiv_mode(acl, mode);
-		if (!error)
-			*remove = 1;
-		else if (error > 0)
-			error = 0;
+	switch (type) {
+	case ACL_TYPE_ACCESS:
+		return GFS2_POSIX_ACL_ACCESS;
+	case ACL_TYPE_DEFAULT:
+		return GFS2_POSIX_ACL_DEFAULT;
 	}
-
-out:
-	posix_acl_release(acl);
-	return error;
-}
-
-int gfs2_acl_validate_remove(struct gfs2_inode *ip, int access)
-{
-	if (!GFS2_SB(&ip->i_inode)->sd_args.ar_posix_acl)
-		return -EOPNOTSUPP;
-	if (!is_owner_or_cap(&ip->i_inode))
-		return -EPERM;
-	if (S_ISLNK(ip->i_inode.i_mode))
-		return -EOPNOTSUPP;
-	if (!access && !S_ISDIR(ip->i_inode.i_mode))
-		return -EACCES;
-
-	return 0;
+	return NULL;
 }
 
-static int acl_get(struct gfs2_inode *ip, const char *name,
-		   struct posix_acl **acl, struct gfs2_ea_location *el,
-		   char **datap, unsigned int *lenp)
+static struct posix_acl *gfs2_acl_get(struct gfs2_inode *ip, int type)
 {
+	struct posix_acl *acl;
+	const char *name;
 	char *data;
-	unsigned int len;
-	int error;
-
-	el->el_bh = NULL;
+	int len;
 
 	if (!ip->i_eattr)
-		return 0;
-
-	error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, name, el);
-	if (error)
-		return error;
-	if (!el->el_ea)
-		return 0;
-	if (!GFS2_EA_DATA_LEN(el->el_ea))
-		goto out;
+		return NULL;
 
-	len = GFS2_EA_DATA_LEN(el->el_ea);
-	data = kmalloc(len, GFP_NOFS);
-	error = -ENOMEM;
-	if (!data)
-		goto out;
+	acl = get_cached_acl(&ip->i_inode, type);
+	if (acl != ACL_NOT_CACHED)
+		return acl;
 
-	error = gfs2_ea_get_copy(ip, el, data, len);
-	if (error < 0)
-		goto out_kfree;
-	error = 0;
+	name = gfs2_acl_name(type);
+	if (name == NULL)
+		return ERR_PTR(-EINVAL);
 
-	if (acl) {
-		*acl = posix_acl_from_xattr(data, len);
-		if (IS_ERR(*acl))
-			error = PTR_ERR(*acl);
-	}
+	len = gfs2_xattr_acl_get(ip, name, &data);
+	if (len < 0)
+		return ERR_PTR(len);
+	if (len == 0)
+		return NULL;
 
-out_kfree:
-	if (error || !datap) {
-		kfree(data);
-	} else {
-		*datap = data;
-		*lenp = len;
-	}
-out:
-	return error;
+	acl = posix_acl_from_xattr(data, len);
+	kfree(data);
+	return acl;
 }
 
 /**
@@ -140,14 +77,12 @@ out:
 
 int gfs2_check_acl(struct inode *inode, int mask)
 {
-	struct gfs2_ea_location el;
-	struct posix_acl *acl = NULL;
+	struct posix_acl *acl;
 	int error;
 
-	error = acl_get(GFS2_I(inode), GFS2_POSIX_ACL_ACCESS, &acl, &el, NULL, NULL);
-	brelse(el.el_bh);
-	if (error)
-		return error;
+	acl = gfs2_acl_get(GFS2_I(inode), ACL_TYPE_ACCESS);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
 
 	if (acl) {
 		error = posix_acl_permission(inode, acl, mask);
@@ -158,57 +93,75 @@ int gfs2_check_acl(struct inode *inode, int mask)
 	return -EAGAIN;
 }
 
-static int munge_mode(struct gfs2_inode *ip, mode_t mode)
+static int gfs2_set_mode(struct inode *inode, mode_t mode)
 {
-	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
-	struct buffer_head *dibh;
-	int error;
+	int error = 0;
 
-	error = gfs2_trans_begin(sdp, RES_DINODE, 0);
-	if (error)
-		return error;
+	if (mode != inode->i_mode) {
+		struct iattr iattr;
 
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		gfs2_assert_withdraw(sdp,
-				(ip->i_inode.i_mode & S_IFMT) == (mode & S_IFMT));
-		ip->i_inode.i_mode = mode;
-		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
+		iattr.ia_valid = ATTR_MODE;
+		iattr.ia_mode = mode;
+
+		error = gfs2_setattr_simple(GFS2_I(inode), &iattr);
 	}
 
-	gfs2_trans_end(sdp);
+	return error;
+}
+
+static int gfs2_acl_set(struct inode *inode, int type, struct posix_acl *acl)
+{
+	int error;
+	int len;
+	char *data;
+	const char *name = gfs2_acl_name(type);
 
-	return 0;
+	BUG_ON(name == NULL);
+	len = posix_acl_to_xattr(acl, NULL, 0);
+	if (len == 0)
+		return 0;
+	data = kmalloc(len, GFP_NOFS);
+	if (data == NULL)
+		return -ENOMEM;
+	error = posix_acl_to_xattr(acl, data, len);
+	if (error < 0)
+		goto out;
+	error = gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, data, len, 0);
+	if (!error)
+		set_cached_acl(inode, type, acl);
+out:
+	kfree(data);
+	return error;
 }
 
-int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip)
+int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode)
 {
-	struct gfs2_ea_location el;
 	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
-	struct posix_acl *acl = NULL, *clone;
-	mode_t mode = ip->i_inode.i_mode;
-	char *data = NULL;
-	unsigned int len;
-	int error;
+	struct posix_acl *acl, *clone;
+	mode_t mode = inode->i_mode;
+	int error = 0;
 
 	if (!sdp->sd_args.ar_posix_acl)
 		return 0;
-	if (S_ISLNK(ip->i_inode.i_mode))
+	if (S_ISLNK(inode->i_mode))
 		return 0;
 
-	error = acl_get(dip, GFS2_POSIX_ACL_DEFAULT, &acl, &el, &data, &len);
-	brelse(el.el_bh);
-	if (error)
-		return error;
+	acl = gfs2_acl_get(dip, ACL_TYPE_DEFAULT);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
 	if (!acl) {
 		mode &= ~current_umask();
-		if (mode != ip->i_inode.i_mode)
-			error = munge_mode(ip, mode);
+		if (mode != inode->i_mode)
+			error = gfs2_set_mode(inode, mode);
 		return error;
 	}
 
+	if (S_ISDIR(inode->i_mode)) {
+		error = gfs2_acl_set(inode, ACL_TYPE_DEFAULT, acl);
+		if (error)
+			goto out;
+	}
+
 	clone = posix_acl_clone(acl, GFP_NOFS);
 	error = -ENOMEM;
 	if (!clone)
@@ -216,43 +169,32 @@ int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip)
 	posix_acl_release(acl);
 	acl = clone;
 
-	if (S_ISDIR(ip->i_inode.i_mode)) {
-		error = gfs2_xattr_set(&ip->i_inode, GFS2_EATYPE_SYS,
-				       GFS2_POSIX_ACL_DEFAULT, data, len, 0);
-		if (error)
-			goto out;
-	}
-
 	error = posix_acl_create_masq(acl, &mode);
 	if (error < 0)
 		goto out;
 	if (error == 0)
 		goto munge;
 
-	posix_acl_to_xattr(acl, data, len);
-	error = gfs2_xattr_set(&ip->i_inode, GFS2_EATYPE_SYS,
-			       GFS2_POSIX_ACL_ACCESS, data, len, 0);
+	error = gfs2_acl_set(inode, ACL_TYPE_ACCESS, acl);
 	if (error)
 		goto out;
 munge:
-	error = munge_mode(ip, mode);
+	error = gfs2_set_mode(inode, mode);
 out:
 	posix_acl_release(acl);
-	kfree(data);
 	return error;
 }
 
 int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
 {
-	struct posix_acl *acl = NULL, *clone;
-	struct gfs2_ea_location el;
+	struct posix_acl *acl, *clone;
 	char *data;
 	unsigned int len;
 	int error;
 
-	error = acl_get(ip, GFS2_POSIX_ACL_ACCESS, &acl, &el, &data, &len);
-	if (error)
-		goto out_brelse;
+	acl = gfs2_acl_get(ip, ACL_TYPE_ACCESS);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
 	if (!acl)
 		return gfs2_setattr_simple(ip, attr);
 
@@ -265,15 +207,134 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
 
 	error = posix_acl_chmod_masq(acl, attr->ia_mode);
 	if (!error) {
+		len = posix_acl_to_xattr(acl, NULL, 0);
+		data = kmalloc(len, GFP_NOFS);
+		error = -ENOMEM;
+		if (data == NULL)
+			goto out;
 		posix_acl_to_xattr(acl, data, len);
-		error = gfs2_ea_acl_chmod(ip, &el, attr, data);
+		error = gfs2_xattr_acl_chmod(ip, attr, data);
+		kfree(data);
+		set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);
 	}
 
 out:
 	posix_acl_release(acl);
-	kfree(data);
-out_brelse:
-	brelse(el.el_bh);
 	return error;
 }
 
+static int gfs2_acl_type(const char *name)
+{
+	if (strcmp(name, GFS2_POSIX_ACL_ACCESS) == 0)
+		return ACL_TYPE_ACCESS;
+	if (strcmp(name, GFS2_POSIX_ACL_DEFAULT) == 0)
+		return ACL_TYPE_DEFAULT;
+	return -EINVAL;
+}
+
+static int gfs2_xattr_system_get(struct inode *inode, const char *name,
+				 void *buffer, size_t size)
+{
+	struct posix_acl *acl;
+	int type;
+	int error;
+
+	type = gfs2_acl_type(name);
+	if (type < 0)
+		return type;
+
+	acl = gfs2_acl_get(GFS2_I(inode), type);
+	if (IS_ERR(acl))
+		return PTR_ERR(acl);
+	if (acl == NULL)
+		return -ENODATA;
+
+	error = posix_acl_to_xattr(acl, buffer, size);
+	posix_acl_release(acl);
+
+	return error;
+}
+
+static int gfs2_xattr_system_set(struct inode *inode, const char *name,
+				 const void *value, size_t size, int flags)
+{
+	struct gfs2_sbd *sdp = GFS2_SB(inode);
+	struct posix_acl *acl = NULL;
+	int error = 0, type;
+
+	if (!sdp->sd_args.ar_posix_acl)
+		return -EOPNOTSUPP;
+
+	type = gfs2_acl_type(name);
+	if (type < 0)
+		return type;
+	if (flags & XATTR_CREATE)
+		return -EINVAL;
+	if (type == ACL_TYPE_DEFAULT && !S_ISDIR(inode->i_mode))
+		return value ? -EACCES : 0;
+	if ((current_fsuid() != inode->i_uid) && !capable(CAP_FOWNER))
+		return -EPERM;
+	if (S_ISLNK(inode->i_mode))
+		return -EOPNOTSUPP;
+
+	if (!value)
+		goto set_acl;
+
+	acl = posix_acl_from_xattr(value, size);
+	if (!acl) {
+		/*
+		 * acl_set_file(3) may request that we set default ACLs with
+		 * zero length -- defend (gracefully) against that here.
+		 */
+		goto out;
+	}
+	if (IS_ERR(acl)) {
+		error = PTR_ERR(acl);
+		goto out;
+	}
+
+	error = posix_acl_valid(acl);
+	if (error)
+		goto out_release;
+
+	error = -EINVAL;
+	if (acl->a_count > GFS2_ACL_MAX_ENTRIES)
+		goto out_release;
+
+	if (type == ACL_TYPE_ACCESS) {
+		mode_t mode = inode->i_mode;
+		error = posix_acl_equiv_mode(acl, &mode);
+
+		if (error <= 0) {
+			posix_acl_release(acl);
+			acl = NULL;
+
+			if (error < 0)
+				return error;
+		}
+
+		error = gfs2_set_mode(inode, mode);
+		if (error)
+			goto out_release;
+	}
+
+set_acl:
+	error = gfs2_xattr_set(inode, GFS2_EATYPE_SYS, name, value, size, 0);
+	if (!error) {
+		if (acl)
+			set_cached_acl(inode, type, acl);
+		else
+			forget_cached_acl(inode, type);
+	}
+out_release:
+	posix_acl_release(acl);
+out:
+	return error;
+}
+
+struct xattr_handler gfs2_xattr_system_handler = {
+	.prefix = XATTR_SYSTEM_PREFIX,
+	.get    = gfs2_xattr_system_get,
+	.set    = gfs2_xattr_system_set,
+};
+
diff --git a/fs/gfs2/acl.h b/fs/gfs2/acl.h
index 6751930bfb6..9306a2e6620 100644
--- a/fs/gfs2/acl.h
+++ b/fs/gfs2/acl.h
@@ -13,26 +13,12 @@
 #include "incore.h"
 
 #define GFS2_POSIX_ACL_ACCESS		"posix_acl_access"
-#define GFS2_POSIX_ACL_ACCESS_LEN	16
 #define GFS2_POSIX_ACL_DEFAULT		"posix_acl_default"
-#define GFS2_POSIX_ACL_DEFAULT_LEN	17
+#define GFS2_ACL_MAX_ENTRIES		25
 
-#define GFS2_ACL_IS_ACCESS(name, len) \
-         ((len) == GFS2_POSIX_ACL_ACCESS_LEN && \
-         !memcmp(GFS2_POSIX_ACL_ACCESS, (name), (len)))
-
-#define GFS2_ACL_IS_DEFAULT(name, len) \
-         ((len) == GFS2_POSIX_ACL_DEFAULT_LEN && \
-         !memcmp(GFS2_POSIX_ACL_DEFAULT, (name), (len)))
-
-struct gfs2_ea_request;
-
-int gfs2_acl_validate_set(struct gfs2_inode *ip, int access,
-			  struct gfs2_ea_request *er,
-			  int *remove, mode_t *mode);
-int gfs2_acl_validate_remove(struct gfs2_inode *ip, int access);
-int gfs2_check_acl(struct inode *inode, int mask);
-int gfs2_acl_create(struct gfs2_inode *dip, struct gfs2_inode *ip);
-int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr);
+extern int gfs2_check_acl(struct inode *inode, int mask);
+extern int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode);
+extern int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr);
+extern struct xattr_handler gfs2_xattr_system_handler;
 
 #endif /* __ACL_DOT_H__ */
diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 694b5d48f03..7b8da941526 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -269,7 +269,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
 	pgoff_t end_index = i_size >> PAGE_CACHE_SHIFT;
 	unsigned offset = i_size & (PAGE_CACHE_SIZE-1);
 	unsigned nrblocks = nr_pages * (PAGE_CACHE_SIZE/inode->i_sb->s_blocksize);
-	struct backing_dev_info *bdi = mapping->backing_dev_info;
 	int i;
 	int ret;
 
@@ -313,11 +312,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
 
 		if (ret || (--(wbc->nr_to_write) <= 0))
 			ret = 1;
-		if (wbc->nonblocking && bdi_write_congested(bdi)) {
-			wbc->encountered_congestion = 1;
-			ret = 1;
-		}
-
 	}
 	gfs2_trans_end(sdp);
 	return ret;
@@ -338,7 +332,6 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping,
 static int gfs2_write_cache_jdata(struct address_space *mapping,
 				  struct writeback_control *wbc)
 {
-	struct backing_dev_info *bdi = mapping->backing_dev_info;
 	int ret = 0;
 	int done = 0;
 	struct pagevec pvec;
@@ -348,11 +341,6 @@ static int gfs2_write_cache_jdata(struct address_space *mapping,
 	int scanned = 0;
 	int range_whole = 0;
 
-	if (wbc->nonblocking && bdi_write_congested(bdi)) {
-		wbc->encountered_congestion = 1;
-		return 0;
-	}
-
 	pagevec_init(&pvec, 0);
 	if (wbc->range_cyclic) {
 		index = mapping->writeback_index; /* Start from prev offset */
@@ -819,8 +807,10 @@ static int gfs2_stuffed_write_end(struct inode *inode, struct buffer_head *dibh,
 		mark_inode_dirty(inode);
 	}
 
-	if (inode == sdp->sd_rindex)
+	if (inode == sdp->sd_rindex) {
 		adjust_fs_space(inode);
+		ip->i_gh.gh_flags |= GL_NOCACHE;
+	}
 
 	brelse(dibh);
 	gfs2_trans_end(sdp);
@@ -889,8 +879,10 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
 		mark_inode_dirty(inode);
 	}
 
-	if (inode == sdp->sd_rindex)
+	if (inode == sdp->sd_rindex) {
 		adjust_fs_space(inode);
+		ip->i_gh.gh_flags |= GL_NOCACHE;
+	}
 
 	brelse(dibh);
 	gfs2_trans_end(sdp);
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 297d7e5ceba..25fddc100f1 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -525,38 +525,6 @@ consist_inode:
 	return ERR_PTR(-EIO);
 }
 
-
-/**
- * dirent_first - Return the first dirent
- * @dip: the directory
- * @bh: The buffer
- * @dent: Pointer to list of dirents
- *
- * return first dirent whether bh points to leaf or stuffed dinode
- *
- * Returns: IS_LEAF, IS_DINODE, or -errno
- */
-
-static int dirent_first(struct gfs2_inode *dip, struct buffer_head *bh,
-			struct gfs2_dirent **dent)
-{
-	struct gfs2_meta_header *h = (struct gfs2_meta_header *)bh->b_data;
-
-	if (be32_to_cpu(h->mh_type) == GFS2_METATYPE_LF) {
-		if (gfs2_meta_check(GFS2_SB(&dip->i_inode), bh))
-			return -EIO;
-		*dent = (struct gfs2_dirent *)(bh->b_data +
-					       sizeof(struct gfs2_leaf));
-		return IS_LEAF;
-	} else {
-		if (gfs2_metatype_check(GFS2_SB(&dip->i_inode), bh, GFS2_METATYPE_DI))
-			return -EIO;
-		*dent = (struct gfs2_dirent *)(bh->b_data +
-					       sizeof(struct gfs2_dinode));
-		return IS_DINODE;
-	}
-}
-
 static int dirent_check_reclen(struct gfs2_inode *dip,
 			       const struct gfs2_dirent *d, const void *end_p)
 {
@@ -1006,7 +974,7 @@ static int dir_split_leaf(struct inode *inode, const struct qstr *name)
 	divider = (start + half_len) << (32 - dip->i_depth);
 
 	/*  Copy the entries  */
-	dirent_first(dip, obh, &dent);
+	dent = (struct gfs2_dirent *)(obh->b_data + sizeof(struct gfs2_leaf));
 
 	do {
 		next = dent;
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 8b674b1f3a5..f455a03a09e 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -241,15 +241,14 @@ int gfs2_glock_put(struct gfs2_glock *gl)
 	int rv = 0;
 
 	write_lock(gl_lock_addr(gl->gl_hash));
-	if (atomic_dec_and_test(&gl->gl_ref)) {
+	if (atomic_dec_and_lock(&gl->gl_ref, &lru_lock)) {
 		hlist_del(&gl->gl_list);
-		write_unlock(gl_lock_addr(gl->gl_hash));
-		spin_lock(&lru_lock);
 		if (!list_empty(&gl->gl_lru)) {
 			list_del_init(&gl->gl_lru);
 			atomic_dec(&lru_count);
 		}
 		spin_unlock(&lru_lock);
+		write_unlock(gl_lock_addr(gl->gl_hash));
 		GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
 		glock_free(gl);
 		rv = 1;
@@ -513,7 +512,6 @@ retry:
 			GLOCK_BUG_ON(gl, 1);
 		}
 		spin_unlock(&gl->gl_spin);
-		gfs2_glock_put(gl);
 		return;
 	}
 
@@ -524,8 +522,6 @@ retry:
 		if (glops->go_xmote_bh) {
 			spin_unlock(&gl->gl_spin);
 			rv = glops->go_xmote_bh(gl, gh);
-			if (rv == -EAGAIN)
-				return;
 			spin_lock(&gl->gl_spin);
 			if (rv) {
 				do_error(gl, rv);
@@ -540,7 +536,6 @@ out:
 	clear_bit(GLF_LOCK, &gl->gl_flags);
 out_locked:
 	spin_unlock(&gl->gl_spin);
-	gfs2_glock_put(gl);
 }
 
 static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
@@ -600,7 +595,6 @@ __acquires(&gl->gl_spin)
 
 	if (!(ret & LM_OUT_ASYNC)) {
 		finish_xmote(gl, ret);
-		gfs2_glock_hold(gl);
 		if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
 			gfs2_glock_put(gl);
 	} else {
@@ -672,12 +666,17 @@ out:
 	return;
 
 out_sched:
+	clear_bit(GLF_LOCK, &gl->gl_flags);
+	smp_mb__after_clear_bit();
 	gfs2_glock_hold(gl);
 	if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
 		gfs2_glock_put_nolock(gl);
+	return;
+
 out_unlock:
 	clear_bit(GLF_LOCK, &gl->gl_flags);
-	goto out;
+	smp_mb__after_clear_bit();
+	return;
 }
 
 static void delete_work_func(struct work_struct *work)
@@ -707,9 +706,12 @@ static void glock_work_func(struct work_struct *work)
 {
 	unsigned long delay = 0;
 	struct gfs2_glock *gl = container_of(work, struct gfs2_glock, gl_work.work);
+	int drop_ref = 0;
 
-	if (test_and_clear_bit(GLF_REPLY_PENDING, &gl->gl_flags))
+	if (test_and_clear_bit(GLF_REPLY_PENDING, &gl->gl_flags)) {
 		finish_xmote(gl, gl->gl_reply);
+		drop_ref = 1;
+	}
 	down_read(&gfs2_umount_flush_sem);
 	spin_lock(&gl->gl_spin);
 	if (test_and_clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags) &&
@@ -727,6 +729,8 @@ static void glock_work_func(struct work_struct *work)
 	if (!delay ||
 	    queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
 		gfs2_glock_put(gl);
+	if (drop_ref)
+		gfs2_glock_put(gl);
 }
 
 /**
@@ -1361,10 +1365,6 @@ static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask)
 		list_del_init(&gl->gl_lru);
 		atomic_dec(&lru_count);
 
-		/* Check if glock is about to be freed */
-		if (atomic_read(&gl->gl_ref) == 0)
-			continue;
-
 		/* Test for being demotable */
 		if (!test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
 			gfs2_glock_hold(gl);
@@ -1375,10 +1375,11 @@ static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask)
 				handle_callback(gl, LM_ST_UNLOCKED, 0);
 				nr--;
 			}
+			clear_bit(GLF_LOCK, &gl->gl_flags);
+			smp_mb__after_clear_bit();
 			if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
 				gfs2_glock_put_nolock(gl);
 			spin_unlock(&gl->gl_spin);
-			clear_bit(GLF_LOCK, &gl->gl_flags);
 			spin_lock(&lru_lock);
 			continue;
 		}
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index c609894ec0d..13f0bd22813 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -180,15 +180,6 @@ static inline int gfs2_glock_is_held_shrd(struct gfs2_glock *gl)
 	return gl->gl_state == LM_ST_SHARED;
 }
 
-static inline int gfs2_glock_is_blocking(struct gfs2_glock *gl)
-{
-	int ret;
-	spin_lock(&gl->gl_spin);
-	ret = test_bit(GLF_DEMOTE, &gl->gl_flags);
-	spin_unlock(&gl->gl_spin);
-	return ret;
-}
-
 int gfs2_glock_get(struct gfs2_sbd *sdp,
 		   u64 number, const struct gfs2_glock_operations *glops,
 		   int create, struct gfs2_glock **glp);
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 6985eef06c3..78554acc060 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -13,6 +13,7 @@
 #include <linux/buffer_head.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/bio.h>
+#include <linux/posix_acl.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -184,8 +185,10 @@ static void inode_go_inval(struct gfs2_glock *gl, int flags)
 	if (flags & DIO_METADATA) {
 		struct address_space *mapping = gl->gl_aspace->i_mapping;
 		truncate_inode_pages(mapping, 0);
-		if (ip)
+		if (ip) {
 			set_bit(GIF_INVALID, &ip->i_flags);
+			forget_all_cached_acls(&ip->i_inode);
+		}
 	}
 
 	if (ip == GFS2_I(gl->gl_sbd->sd_rindex))
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 6edb423f90b..4792200978c 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -429,7 +429,11 @@ struct gfs2_args {
 	unsigned int ar_meta:1;			/* mount metafs */
 	unsigned int ar_discard:1;		/* discard requests */
 	unsigned int ar_errors:2;               /* errors=withdraw | panic */
+	unsigned int ar_nobarrier:1;            /* do not send barriers */
 	int ar_commit;				/* Commit interval */
+	int ar_statfs_quantum;			/* The fast statfs interval */
+	int ar_quota_quantum;			/* The quota interval */
+	int ar_statfs_percent;			/* The % change to force sync */
 };
 
 struct gfs2_tune {
@@ -558,6 +562,7 @@ struct gfs2_sbd {
 	spinlock_t sd_statfs_spin;
 	struct gfs2_statfs_change_host sd_statfs_master;
 	struct gfs2_statfs_change_host sd_statfs_local;
+	int sd_statfs_force_sync;
 
 	/* Resource group stuff */
 
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index fb15d3b1f40..26ba2a4c4a2 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -871,7 +871,7 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
 	if (error)
 		goto fail_gunlock2;
 
-	error = gfs2_acl_create(dip, GFS2_I(inode));
+	error = gfs2_acl_create(dip, inode);
 	if (error)
 		goto fail_gunlock2;
 
@@ -947,9 +947,7 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
 
 	str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
 	str->di_header.mh_type = cpu_to_be32(GFS2_METATYPE_DI);
-	str->di_header.__pad0 = 0;
 	str->di_header.mh_format = cpu_to_be32(GFS2_FORMAT_DI);
-	str->di_header.__pad1 = 0;
 	str->di_num.no_addr = cpu_to_be64(ip->i_no_addr);
 	str->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
 	str->di_mode = cpu_to_be32(ip->i_inode.i_mode);
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 13c6237c5f6..4511b08fc45 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -596,7 +596,9 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull)
 	memset(lh, 0, sizeof(struct gfs2_log_header));
 	lh->lh_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
 	lh->lh_header.mh_type = cpu_to_be32(GFS2_METATYPE_LH);
+	lh->lh_header.__pad0 = cpu_to_be64(0);
 	lh->lh_header.mh_format = cpu_to_be32(GFS2_FORMAT_LH);
+	lh->lh_header.mh_jid = cpu_to_be32(sdp->sd_jdesc->jd_jid);
 	lh->lh_sequence = cpu_to_be64(sdp->sd_log_sequence++);
 	lh->lh_flags = cpu_to_be32(flags);
 	lh->lh_tail = cpu_to_be32(tail);
diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c
index 9969ff062c5..de97632ba32 100644
--- a/